Specific, reduced surface excess

Kxpcrimcntal data for adsorption from solution are usually expressed as specific reduced surface excess isotherms, sometimes called composite isotherms, in which n()Ax, /m is plotted as a function... 

The quantity n° is the total amount of components 1 and 2 (n° = i + 2. in moles) offered per gram of adsorbent, and Axi indicates the change of the molar fraction of component 1 by adsorption. The specific reduced surface excess = /( i) represents the composite isotherm from which the true... 

FIGURE 25 Competitive adsorption of alcohols and water on crystalline silicic acids, (a) Methanol (index l)/water (2) on H2Si2o04i 3.6 H2O (b) propanol (l)/water (2) on H2Si2o04i 5.2H2O. w f"Vra specific reduced surface excess of alcohol, Xi molar fraction of alcohol in the equilibrium solution. (From Ref. 159.)... 

FIGURE 26 Composite adsorption isotherm of methanol (index l)/water (2) on H2Sii4029 1.8H2O. specific reduced surface excess of methanol. Xi molar fraction... 

FIGURE 28 Competitive adsorption of n-butanol (l)/n-pentanol (2) (a) and n-butanol (l)/n-hexanol (2) (b) on H2Si2( )4i 3.6H2O. specific reduced surface excess of... 

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